202012201200221 has 8 divisors (see below), whose sum is σ = 206784275718240. Its totient is φ = 197243495607312.

The previous prime is 202012201200211. The next prime is 202012201200241. The reversal of 202012201200221 is 122002102210202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202012201200221 - 2³⁸ = 201737323293277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202012201200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202012201200211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 842109935 + ... + 842349788.

It is an arithmetic number, because the mean of its divisors is an integer number (25848034464780).

Almost surely, 2^{202012201200221} is an apocalyptic number.

It is an amenable number.

202012201200221 is a deficient number, since it is larger than the sum of its proper divisors (4772074518019).

202012201200221 is a wasteful number, since it uses less digits than its factorization.

202012201200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684462555.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202012201200221 its reverse (122002102210202), we get a palindrome (324014303410423).

The spelling of 202012201200221 in words is "two hundred two trillion, twelve billion, two hundred one million, two hundred thousand, two hundred twenty-one".